KR910003105B1 - Cosmetic composition - Google Patents

Abstract

The make-up cosmetic compsn. is prepd. by (a) adsorbing 5-10 wt.% acid-treated titanium dioxide of 0.5-5 micron particle size to 80- 94.8 wt.% mica of 20-100 micron particle size, (b) cleaning, dewatering and drying the filtrate at 100-120 deg.C for 24hr to obtain soft focus powders, (c) mixing the powders with 0.2-10 wt.% methylhydrogen polysiloxane as a reactive silicone, and (d) treating the mixt. at 60-150 deg.C and 800-1000 millibar. The cosmetic compsn. is used in the manufacture of emulsion-type foundation and oil cake-type foundation, and has a good durability, emulsion-stability and water-resistance.

Description

[Name of invention]

Makeup Cosmetics

Detailed description of the invention

The present invention relates to a make-up cosmetics, in particular a water-in-oil emulsified foundation formed by coating a reactive silicone to give lipophilic to the soft focus powder by adsorbing titanium dioxide treated with acid on the surface of the mica particles The present invention relates to a make-up cosmetics having excellent sunscreen effect and water resistance when used in a day lotion, a two-way cake or an oil cake-type foundation.

In general, makeup cosmetics are determined by the cosmetic effect, the persistence of the cosmetic effect, the usability such as skin adhesion or skin flexibility, and the drop of the quality of the quality is determined. That is, make-up effects such as concealment, color expression, moisturizing and UV blocking effect should be excellent, spreadability and touch to the skin should be good when applied to the skin, should not irritate the skin, and excellent skin It should not only be excellent in water resistance, such as being hard to be removed by sweat due to adhesion and water, but also there should be no change in physical properties, especially during the distribution process of the product such as manufacture, sale and use.

Conventionally, oil-in-water oil-based cosmetics have been used, but they have excellent usability and stability, but have not lasted a long-lasting makeup effect. Especially, since water resistance to water or sweat is inadequate, stains may occur after makeup. It was easy to erase. Therefore, water-in-oil emulsified make-up cosmetics have been used to compensate for these drawbacks. However, water-in-oil emulsified make-up cosmetics have increased water resistance significantly compared to oil-in-water emulsified cosmetics, but secrete a lot of sweat, During the summer or during frequent contact with water, the water resistance was not sufficiently exhibited, the persistence and stability of the makeup were not satisfactory, and the touch to the skin during use was also poor.

On the other hand, domestic patent publication No. 85-1298 spray-pulverizes the oil conjugate to the inorganic pigment or the inorganic pigment treated to have a lipophilic surface, and then spray-pulverizes and compresses the silicone oil therein to prepare a foundation Although the technology is introduced, the pigment surface used in water-in-oil emulsified foundations, two-way cakes and oil cake-type foundations has hydrophilicity, so that the water resistance is inferior. There was a problem in that the compatibility with the pigment having a very poor stability.

Accordingly, the present invention is to solve the conventional problems, to improve the makeup effect, such as concealment, color expression, moisturizing and UV blocking effect, to maintain the long-lasting makeup effect, emulsification stability to external conditions And the purpose is to provide a make-up cosmetics excellent in water resistance.

Hereinafter, the present invention will be described in detail.

The present invention comprises a lipophilic powder by coating 0.2 to 10 parts by weight of reactive silicone to a soft focus powder by adsorbing 5 to 10 parts by weight of acid-treated titanium dioxide in makeup cosmetics 80 to 94.8 parts by weight. It is a make-up cosmetics.

Hereinafter, the present invention will be described in more detail.

The present invention is a cosmetic that is used to produce a water-in-oil foundation, two-way cake, oil cake-type foundation by coating a soft focus powder having hydrophilic properties as a water-resistant silicone, lipophilic powder, It is excellent in water resistance and stability as well as UV protection effect of cosmetics. The cosmetic composition according to the present invention containing a lipophilic powder is prepared by the following method. That is, acid-treated titanium dioxide having a particle size of 0.5 to 5 μm is first adsorbed onto the surface of mica particles having a particle size of 20 to 100 μm, but 5 to 10 parts by weight of titanium dioxide is contained at a pH of 1 to 2 at 80 to 94.8 parts by weight of mica. 0.2 to 10 parts by weight of methylhydrogen polysiloxane as reactive silicone was added to the soft focus powder obtained by removing the supernatant, washing and dehydrating the filtrate, and then drying at a temperature of 100 to 120 ° C. for 24 hours. After blasting and mixing, the mixture is aged for 24 to 48 hours under high temperature reduction (temperature of 60 to 150 ° C. and pressure of 800 to 1000 millibars), and then pulverized twice to prepare a lipophilic powder.

In this case, when the obtained powder is used as a raw material of the water-in-oil emulsified foundation, it should be contained in an amount of 0.3 to 15 parts by weight. If the treated powder is used in an amount of 0.3 parts by weight or less, it is possible to achieve the object of the present invention. On the contrary, when more than 15 parts by weight is used, the stability of the cosmetics is not reduced any more, only the stability is lowered. In addition, when the powder is used as a raw material of an oil cake-type foundation or a two-way cake, the powder may be contained in an amount of 5 to 60 parts by weight or 5 to 70 parts by weight. It has little effect and water resistance, and when the powder is used in the manufacture of two-way cakes by using 70 parts by weight or more, when using 60 parts by weight or more in the production of cake-type foundation, the water resistance does not increase any more. There will be restrictions.

Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples.

In Examples and Comparative Examples of the present invention, a component having excellent stability and usability was used as an aqueous phase component, an oil phase component, and an additive. The pigment was used as a pigment to be compared, and the pigment was added by the composition ratio Prepared.

EXAMPLE

[Examples 1 to 3 [Comparative Examples 1 to 3]]

To prepare a water-in-oil emulsified foundation according to the component and composition ratio of the following Table 1, the pigment is dispersed in an oil phase, and then prepared by emulsifying by adding an aqueous phase and cold defoaming.

TABLE 1

[Examples 4 to 6 [Comparative Examples 4 to 6]]

Next, prepare an oil cake-type foundation according to the ingredients and composition ratios of Table 2 below, disperse the pigment in the oil phase, add the fragrance, fill the plate, and cool.

TABLE 2

[Examples 7 to 9 [Comparative Examples 7 to 9]]

Next, two-way cake (water-in-oil cake-type powder foundation) is prepared according to the ingredients and composition ratios of Table 3, followed by mixing and pulverizing the pigment twice, followed by mixing and molding an oil component, an additive, and a flavor.

TABLE 3

In the evaluation of the cosmetic effect and usability of cosmetics according to the Examples and Comparative Examples, the UV protection effect, the sustainability, the water resistance and the stability were measured mechanically, and the usability, the stability and the durability of 100 women aged 20 to 30 years. The sensory evaluation was also conducted at the same time.

[UV protection effect]

The quartz plate was regarded as skin, and a sample was coated on the quartz plate with a certain thickness to form a thin film, and then the absorbance and transmittance of the film were measured with a spectrophotometer. In addition, after preparing the sample at a concentration of 10% based on the perm oil, a film (Flim) having a uniform thickness (0.005 to 0.008 mm) was formed to measure absorbance and transmittance. As a result, a value of 290 to 400 mm was obtained. Got it.

[Persistence effect]

The color change was measured using a colorimeter at regular time intervals before and after the cosmetic application. At this time, the arm area was divided into 10 sites and the same area (25 cm 2) was applied to evaluate the persistence, and the sensory evaluation was also performed at the same time.

[Water resistance effect]

1) The degree of color change before and after the cosmetic paints was measured at regular time intervals using a color difference meter. The skin color was measured before application by dividing the arm into 10 parts and applying the same amount (0.05g) to the same area (25㎠). After application, the skin color was soaked for 1 minute in water every 10 minutes and dried The change was measured and the sensory evaluation was performed at the same time.

2) Evaluation method

The cosmetics were applied on a glass plate with a constant thickness, and then saline at 40 ° C. was flowed for 30 minutes, and then the amount of cosmetics remaining was measured and evaluated.

[stability]

Cosmetics were observed using a circulating temperature method, which was left for one day at a temperature of 40 ° C. and a temperature of minus 40 ° C., respectively, and evaluated according to the number of cycles when the emulsification was destroyed.

The powder used in the above example was a powder obtained by adsorbing titanium dioxide treated with acid on the surface of mica particles, and then coated with 3 parts by weight of methylhydrogen polysiloxane, and the powder used in the comparative example used for mica and titanium dioxide. After mixing in the same ratio as 3 parts by weight of methylhydrogen polysiloxane was sprayed and blended, and then reduced by high temperature (temperature of 60 ℃ to 15 ℃, pressure of 800 to 1000 millibar) and aged for 24 to 48 hours will be.

The water-in-oil emulsified foundation was prepared according to the composition ratio of Table 1, and its effects and usability are shown in Table 4 below.

TABLE 4

^** (Note) ○-Good, Δ-Normal accuracy, X-defective.

In the case of cosmetics using 0.3 to 15 parts by weight of powder, such as when producing a water-in-oil emulsified foundation according to Table 4, the powder used in Examples than the comparative example is more excellent in UV-blocking effect and water resistance and usability, It can be seen that both persistence and stability have been improved.

Oil cake-type foundation was prepared according to the composition ratio of Table 2, and its effects and usability are shown in Table 5 below.

TABLE 5

^** (Note) ○-Good, Δ-Normal accuracy, X-defective.

From the results of Table 5, when the oil cake-based foundation containing 5 to 60 parts by weight of the powder according to the present invention can be obtained excellent cosmetics such as UV protection and water resistance.

Two-way cake was prepared according to the composition ratio of Table 3, the effect and usability are shown in Table 6 below.

TABLE 6

^** (Note) ○-Good, Δ-Normal accuracy, X-defective.

As a result of producing the two-way cake using 5 to 70 parts by weight of the powder according to the present invention from the results of Table 6, it is possible to obtain a cosmetic having excellent UV blocking effect and water resistance and excellent durability of the makeup effect.

To summarize the above embodiments, the powder of the metal focus polysiloxane coated on the soft focus powder, that is, cosmetics using the powder according to the invention as a cosmetic (water-in-oil emulsified foundation, oil cake-type foundation, two-way cake ) Has good UV blocking effect, excellent water resistance due to methylhydrogen polysiloxane, and excellent adhesion, flexibility and stability in terms of usability.

Claims (4)

In the make-up cosmetics, containing lipophilic powder obtained by coating 0.2-10 parts by weight of methylhydrogen polysiloxane on a soft focus powder obtained by adsorbing 5-10 parts by weight of acid-treated titanium dioxide on 80 to 94.8 parts by weight of mica. Makeup cosmetics characterized by the above. The make-up cosmetics according to claim 1, wherein the lipophilic powder is contained in an amount of 0.3 to 15 parts by weight in preparing the water-in-oil emulsified foundation. The makeup cosmetic according to claim 1, wherein the lipophilic powder is contained in an amount of 5 to 60 parts by weight in preparation of the oil cake-type foundation. The makeup cosmetic according to claim 1, wherein the lipophilic powder is contained in an amount of 5 to 70 parts by weight during the manufacture of the two-way cake.